<template>
  <el-container class="home-container">
    <el-header>
      <div>
        <img src="../assets/heima.png" alt="" />
        <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button>
    </el-header>
    <el-container>
      <el-aside :width="isCollapse?'64px':'200px'">
          <div class="toggle-button" @click="toggleCollapse">|||</div>
        <el-menu
          background-color="#333744"
          text-color="#fff"
          active-text-color="#409EFE"
          unique-opened
          :collapse="isCollapse"
          :collapse-transition="false"
          router
          :default-active="activePath"
        >
          <el-submenu
            :index="item.id + ''"
            v-for="item in menulist"
            :key="item.id"
          >
            <template slot="title">
              <i :class="iconsObj[item.id]"></i>
              <span>{{ item.authName }}</span>
            </template>

            <el-menu-item
              :index="'/'+subItem.path"
              v-for="subItem in item.children"
              :key="subItem.id"
                @click="saveNavState('/'+subItem.path)"
            >
              <template slot="title">
                <i class="el-icon-menu"></i>
                <span>{{ subItem.authName }}</span>
              </template>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <el-main>
          <router-view/>
      </el-main>
    </el-container>
  </el-container>
</template>
<script>
export default {
  data() {
    return { 
        menulist: [] ,
        iconsObj:{
            '125':'el-icon-user-solid',
            '103':'el-icon-star-on',
            '101':'el-icon-s-goods',
            '102':'el-icon-s-order',
            '145':'el-icon-s-platform',
        },
        isCollapse:false,
        activePath:''
    };
  },
  created() {
    this.getMenuList();
    this.activePath=window.sessionStorage.getItem("activePath")
  },
  methods: {
    logout() {
      window.sessionStorage.clear();
      this.$router.push("/login");
    },
    async getMenuList() {
      const { data: res } = await this.$http.get("menus");
      // console.log(res)
      if (res.meta.status != 200) return this.$message.err(res.meta.message);
      this.menulist = res.data;
    },
    toggleCollapse(){
        this.isCollapse=!this.isCollapse
    },
    saveNavState(activePath){
        window.sessionStorage.setItem("activeItem",activePath);
        this.activePath = activePath;
    }
  },
};
</script>
<style lang="less" scoped>
.home-container {
  height: 100%;
}
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color: #fff;
  font-size: 20px;
  > div {
    display: flex;
    align-items: center;
  }
}
.el-aside {
  background-color: #333744;
  .el-menu{
      border-right: none;
  }
}
.el-main {
  background-color: #eaedf1;
}
.iconfont{
    margin-left: 10px;
}
.toggle-button{
    background-color: #4A5064;
    font-size:10px;
    line-height:24px;
    color:#fff;
    text-align: center;
    letter-spacing: 0.2em;
    cursor: pointer;
}
</style>